Incinerator



March 24, 1931. QWEN 1,797,670

INC INERATOR Filed March 22, 1927 3 Sheets-Sheet 1 lq I l I l I I I l I l I I I I I I I JK INVENTOI? A TTORNEYS.

J. A. OWEN INCINERATOR March 24, 1931.

3 Sheets-Sheet 2 Filed March 22, 1927 I o g x INVENTOR. C um BY Kfm.

M TTORNEYS.

March 24, 1931. J A, OWEN 1,797,670

INC INERATOR Filed March 22, 1927 3 Sheets-Sheet 3 a? 00L a .INVENTOR.

' ATTORNEYS.

Patented Mar. 24, 1931 .UNITEDFSTATES PATENT OFHQEFQ JOHN A. OWEN, OF ALVIN, TEXAS INCINERATOR Application filed'March 22, 1927. Serial No. 177,263.

odors usually given. off from incinerators.

Another object of the invention is to provide an incinerator of the character described whose walls'ja're double throughout withair circulating channels or. passageways between said, walls, the innerwalls being formed of firebrick and the construction being such that any of the interior walls may be removed and replaced without interfering with any of the other walls of the incinerator.

A further object of the invention is to provide an incinerator having the usual shaker grates at the bottom for the reception and support ofvsolid garbage and a liquid receptacle, at one side, for the. reception and consumption of liquid garbage, with a suspending rack, or water grate, above .the shaker grates provided to receive and suspend solid garbage to. the end that the same may be quickly dried out and partly. consumed and then; delivered to thelower or shaker grates whereit is completely consumed.

A still further object of the invention resides in the provision of means whereby water may be circulated through .said rack and through the delivery chute leading thereto, to the end that they will not bequickly burned out.

A further feature of. the invention resides in the provision of suitable inlet shutters,

with means for opening and closing the same, providing means whereby the delivery of the various kinds of'garbage into the furnace maybe facilitated.

A still furtherfeature of the invention, resides in novel means for delivering the ashes, and other solid products of combustion from the furnace to an accessible place on the outside thereof.

With the above and other objects in. view the invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying'drawings, where- 1n:

Figure 1 shows a vertical sectional view of the incinerator. i I

' Figure 2 shows a cross sectional view taken on the line 22 of Figure l. 7

Figure 3 shows a cross sectional view taken on the line 33 of Figure 1'.

Figure 4 shows a fragmentary front elev'ation,.and

Figure 5 shows a fragmentary cross sec:

tional View, taken on the line 55 of Figure 3. Referring'now more particularly to the drawings, wherein like numerals of reference designate'similar parts in each of the figures, the numeral 1 designates the 'outside walls of the incinerator furnace, which has an inwardly extending ledge 1 at the upper end, and which may be formed of concrete, brick, or other suitable material and" the interior of which is preferably, though not necessarily, circular in contour and the numeral 2 designates the inside Walls of the furnace which are preferably composed of fire brick and are spaced from the outside walls to provide an air circulating chamber 3 all the way around between said walls. This circulating space is closed above by the ledge 1', and below by a corresponding ledgev but has the air inlet ports 4 through the outer wall at thebottom, through which air may be admitted into space 3 and the outlet ports 5 through the inner wall at the top, through which the air may be delivered from the space 3 into the upper part of the furnace proper. V

,Mounted 011 the ledge 1 of the furnace proper there is a converging smoke stack also formed of outer and inner walls 6 and 7,which are spacedapartto forman air'circulating passageway 8 between them. These walls 6 and 7 may be composed of any suitable material, the outer wall being preferably of concrete or common brick, and the inner wall b ng preferably of fire brick, and the outer wall 6 has the air inlets 9 opening into the lower end of the space 8 providing for the circulation of air up through said space 8. These air circulating spaces 3 and 3 serve to keep the outside walls of the incinerator from becoming excessively hot, and also permit the expansion and contraction ofthe inner walls without affecting the outer walls.

Within the smoke stack and mounted on the upper end of the ledge 1 of the furnace proper there is a baffle walllO which is pref= erably frusto-conical in general contour forming a fine and above this battle wall within the smoke stack there isthusprovided, a combustion chamber 11. 9

The main portionof the garbage will be consumed in the furnace, as hereinafter explained, but unconsumed carbon, as Well as unconsumed gases passing upwardly through the flue 10 will be mined with additional air flowing in through the ports 5 and this additional air will result in the complete consumption in combustion chamber 11 of all unconsumed matter to the end that there will be practically no odorous fumes issuing out of the smoke stack. Theinner walls 2, 7, and 10 are independently supported so that any one may be removed and replaced without removin any of the other walls of the incinerator.

The furnace is equipped with a suitable burner, a conventional oil burner as 12 being shown, and beneath the burner the furnace is equipped with shaker grates, as 13, 13, which may be agitated, through the conventional outside hand levers 1 1, to shake the ashes downwardly into the ash pit 15. The bottom of this pit converges toward a lon, itudinal central line andbeneath the pit there is an endless apron 16 for conveying out the ashes and which includes a suitable sprocket chain 17 operable over the end sprocket wheels 18, 18, which are fixed on suitable rotatable shafts 19, 19, one of which may be driven in any suitable manner so as to drive the belt like apron 16 in the direction indi cated by the arrow in Figure 1. There is a similar endless belt like conveyor 16 located bet-ween and, whose upper side is, on substantially a common plane with the grates 13 for receivin and conveying out inconsumable refuse which collects on the grates.

Above the grate there are suitable openings 2( through the furnace wall which are normally closed by the shutters 21, providing for access into the furnace for stoking purposes. and beneath the grates 13 are the openings; 22. provided with suitable shutters 23 for access to the furnace beneath saidgrates. These openings 20 and 22 may be lined with metal or other suitable material, as, desired, and the ashes and other refuse reaching the conveyors 16 16 will be delivered thereby outside of the furnace to an accessible place.

An inlet chute 24 is provided whose upper end is normally closed by the upwardly opening shutter 25 and a cable 26 is attached, at one end, to the shutter and operates over an overhead pulley 27 by means of which the shutter-25 may be raised to admit liquid garbage and the lower end of this chute is aligned over areceptacle 28 located opposite the shaker gr tes 13 within the furnace. The bottom of this receptacle declines toward the adyacent wall of the furnace so that the liquid garbage will-be retained therein until it is evaporated, and the solid portions thereof consumed. The shutter 25 is opened to admit the liquid garbage and then immediately closed so as to tightly close the furnace and also prevent the escape of smoke and fumes. Above the inlet end of the chute 24 the furnace is provided withan inlet opening 29 which is normally closed by the vertically morable shutter 80. This shutter moves in the side tracks 31, 31, secured to the outside of the furnace and balance cables 32, 32, are

connected atone end tothe shutter 30, and.

operated over the overhead pulleys 33, 33, and their other ends carry the weights or balance 34, 3 1. Shutter 30 may be elevated for the admission of solid garbage and then immediately closed This garbage will pass down over-the inwardly decli...ingchute 35 and on to thedownwardly declining rack 36 and be there retained until it is dried and partly consumed and the unconsumed portions thereof will be gradually forced down by the additional oncoming garbage on to the grates 13 and will be suflicientlvdry to reaoilv burn: and this will prevent the congstion of wet garbage into a mass on said grates and will facilitate the complete consumption of the garbage.

The chute. is composed of metal. andhas an internal .water circulating chamber 37 therein and the rack 36 is preferably com.- posed of parallel tubing who'seresnective ends are connected into themanifolds 38 and 39..the former of. which is connected with the bottom of the water tank 40, through the pipe 41 and'the latter of which is connected with said tank-through the pipe 12. ater is thus circulated through the rack 36., The manifold into thechamber 37 so that said water may also circulate through said chamber and out through the pine 44: whi ch is connected into the pipe 42. Thus cooling: fluid is ci culated, not only through the rack 36 but also through the chute 35 to the end that these parts will not be quickly burned out by th intense heat in the furnace. I

What I claim is: r

1. An incinerator including a furnace, and asmoke stack above the furnace, said furnace and smoke stack having double walls throughoutwith separate air spaces between said walls, said spaces having air inlets at their lower ends and said furnace having an air also has the ports leading inlet from its wall space at its upper end, and ballle walls above the furnace inlet whose walls are inclined inwardly and upwardly, disposed within the smoke stack'above the furnace.

2. An incinerator including a furnace having a smoke stack, a grate therein, a declining garbage retaining rack inthe furnace above the grate, a chute over which garbage may be deli ver-ed onto said rack said rack and bet-ween said walls, a smoke stack above the furnace mounted on said support, and comprising an outer wall, an independent inner wall spaced from the outer wall, an'upwardly converging baflle wall mounted within the smoke stack on said support, said furnace having air inlet ports beneath the baflle wall and said smoke stack having'an inlet port leading into the lower part of the space between its walls.

l. An incinerator including'a furnace and a smoke stack leading upwardly therefrom, a grate within said furnace, a pair of endless apron-like conveyors disposed one above the other, one of said conveyors being disposer beneath the grate and the other being mounted to travel flush with the upper surface of the grate.

5. An incinerator including a furnace, a smoke stack leading upwardly from and mounted on the furnace, said furnace and smoke stack having double walls throughout formingspaces between them, a ballle wall mounted on the furnace wall and disposed between the furnace and smoke stack forming in effect two combustion chambers, one beneath and the other above the baffle wall, said wall having a restricted passageway there-, through, the furnace having inlet air ports adjacen and beneath said baffle wall, there bealso air ports leading into the space between the smoke stack walls.

6. An incinerator including a furnace having outside and inside walls spaced apart forming a space between them, inwardly extending upper and lower ledges closing the upper and lower ends of the space, an inlet port leading into said space at the bottom, the inside wall having a plurality of outlet ports around the furnace leading from said space into the upper part of the furnace, a smoke stack mounted on said upper ledge, having outer and 1nner walls, spaced apart formlng an air passageway betweenthem, having an inlet port near its lower end, an upwardly converging annular bafile wall within the smoke stack whose lower end rests on said upper ledge. 1

7. A garbage incinerating plant including in combination, a garbagereceivinghousing, an incinerator and a water supply source,

two garbage holding means located in the incinerator in respectively different planes for receiving and retaining garbage in position to be consumed by combustion, one of which holdingmeans 1s hollow, a hollow chute lead ing from the housing to direct garbage from the latter on to one of said holding means, meansto change'the flow ofgarbage to the other holding means, and water circulating pipes connecting the source of supply with said hollowholding means and chute.

In tesitmony whereof I have signed my name to this specification.

JOHNA. OWEN. 

